ANALOG-TO-DIGITAL CONVERTER
    42.
    发明申请
    ANALOG-TO-DIGITAL CONVERTER 有权
    模拟数字转换器

    公开(公告)号:US20140225758A1

    公开(公告)日:2014-08-14

    申请号:US13992112

    申请日:2012-05-30

    IPC分类号: H03M1/50

    CPC分类号: H03M1/50 H03M1/04 H03M1/0607

    摘要: A technique includes receiving an analog signal and generating at least one second signal that has a timing indicative of a magnitude of the analog signal. The technique includes acquiring a plurality of measurements of the timing, where the measurements vary according to a stochastic distribution; and providing a digital representation of the analog signal based at least in part on the measurements.

    摘要翻译: 一种技术包括接收模拟信号并产生具有指示模拟信号幅度的定时的至少一个第二信号。 该技术包括获取定时的多个测量,其中测量根据随机分布而变化; 以及至少部分地基于所述测量提供所述模拟信号的数字表示。

    Dual data weighted average dynamic element matching in analog-to-digital converters
    43.
    发明授权
    Dual data weighted average dynamic element matching in analog-to-digital converters 有权
    模数转换器中的双数据加权平均动态元件匹配

    公开(公告)号:US07760121B2

    公开(公告)日:2010-07-20

    申请号:US12203679

    申请日:2008-09-03

    IPC分类号: H03M1/80

    CPC分类号: H03M1/0665 H03M1/74 H03M3/464

    摘要: Methods and systems to provide dynamic element matching (DEM) in multi-phase sample systems include multiple uncorrelated, dual data weighted averaging, dynamic element matching (DDWA DEM). DDWA DEM may be implemented in a multiple-phase sample system in which sample paths and feedback paths share capacitances. Compensation feedback is apportioned amongst corresponding banks of capacitive sample circuits to utilize the capacitive sample circuits within each bank substantially equally over multiple sample cycles. The apportioning is substantially un-correlated between banks, which may reduce in-band quantization noise folding. DDWA DEM may be implemented within a digital-to-analog converter (DAC), in a delta-sigma modulator.

    摘要翻译: 在多相样本系统中提供动态元素匹配(DEM)的方法和系统包括多个不相关的双重数据加权平均,动态元素匹配(DDWA DEM)。 DDWA DEM可以在采样路径和反馈路径共享电容的多相采样系统中实现。 补偿反馈在相应的电容采样电路组中分配,以在多个采样周期内基本上均等地利用每个存储体中的电容性采样电路。 分配在银行之间基本上是不相关的,这可能减少带内量化噪声折叠。 DDWA DEM可以在Δ-Σ调制器中的数模转换器(DAC)内实现。

    Transmitter control
    45.
    发明申请
    Transmitter control 有权
    变送器控制

    公开(公告)号:US20070041470A1

    公开(公告)日:2007-02-22

    申请号:US11206447

    申请日:2005-08-17

    IPC分类号: H04L25/49

    摘要: An apparatus for transmitter control is disclosed. The apparatus includes an analog circuit designed to operate on at least a portion of a communications signal to be wirelessly transmitted, based at least in part on a control signal. The apparatus includes a lookup table coupled to the analog circuit, with the lookup table designed to output the control signal based at least in part on the communications signal, or one or more measured metrics of the communications signal. Embodiments of the present invention include, but are not limited to, methods encompassing the operations described above, as well as subsystems and systems designed to operate in the above described manner.

    摘要翻译: 公开了一种用于发射机控制的装置。 该装置包括至少部分地基于控制信号而被设计为对要进行无线传输的通信信号的至少一部分进行操作的模拟电路。 该装置包括耦合到模拟电路的查找表,其中查找表被设计为至少部分地基于通信信号或通信信号的一个或多个测量的度量来输出控制信号。 本发明的实施例包括但不限于包括上述操作的方法以及被设计为以上述方式操作的子系统和系统。